Improvement in check-valves



@nimh tstrsgetwt @Hirn JAMES WILSON, 'OF CHESTER; ASSIGNOR TO A; H. SIMON, OF PHILADEL- PHIA, PENNSYLVANIA.

.1 Laim Para: No. 79,527, dma Juna'so, 1868.

IMPROVEMENT 1N CHECK-VALVES.

tite Stimme feierten tu ill-tigers iltztaf atsnt mit mating part uf tige samt.

TO ALL WHOM IT MAY ONCERN:

Be it known that'I, JAMES WILSON, of Chester, county of Delaware, State of Pennsylvania, hav? invented an Improved Check-Valve; and I do hereby declare the following to be a full, clear, and exact description `of the same.

My invention consists .of a valve hung to projections n a. casing, confined thereto by a cap, and arranged for introduction to and withdrawal from the said casing, allsubstantielly as described hereafter, so that the valve may be self-adjusting to its seat in every direction, and so that both valve andeasing may be more readily and economically constructed than ordinary check-valves.

In order to enable others skilled in the art to make and-apply my invention, I will now proceed to describe 'its construction-and operation, reference being had to the accompanying drawing, which Aforms a partI of this specification, and in which- Figure 1 is avertioalsection of my improved check-valve, 1

Figure 2 a. plan view with the screw-cap removed, and

Figure 3 a transverse section on the line 1 2, iig. 1. l

Similar letters refer to similar parts throughout the several views.

The body of the casing A is in the presentinstance of a 'spherical form', and 'has two branches a a', for receiving the ends of pipes, and. a. third branch, b, for receiving the screw-,cap d. l

A seat is formed within the casing at a: for the valve B, which consists; of a metal disk suitably faced at the` side which has to come in contact with the seat x. This valve has a. projecting arm, e, terminating in a sphere, f, which rests in a socket formed by two projections L h east in and forming a part of the casing A, the arm e fitting so freely between these projections. that tbe valve can'have'play suieent to be self-adjusting to the seat laterally, while-its self-adjustment ineveryother direction is insured by the sphere.

The spherical terminationf of the urine O'fthe valve is -maintainedgin itaplace onthefprojections h by the under side of the screw-cap d, which, however, does not bind so hard oh the sphere as to interfere with the free movement of the valvel Y o l I- l I l If it becomes necessary` to n'ithdrawthe valve B from the casing, the screwcap is removed, and ,the valve made to assume the position shown by Adotted lines iig. 1,'aft'er which it can be readily withdrawn through the hollow branch In the same manner it can be as readily reintroduced into the casing, and hung to the pro- The facing of both seat and valve can be readily accomplished by ordinary well-known tools. Hinges-com- -)thon to this class lof valves, are dispenscd'lwith, and the 4valve is self-adjusting in every direction to its seat;

'hence it is more economical than those in which the careful tting of parts demands tedious manipulation.

I claim as myA invention, and desirel to secure by Letters Patent- The valve B, hungV to projections h in the casing, confined thereto bythe screw-cap d, and arranged for introduction into and withdrawal from the said casing, all substantially as'and for`the purpose herein'set forth.

In testimony whereof, I have signed myname to this speciicationin the presence of two subscribing witnesses.

JAMES WILSON.

Witn asses:

WM. A. STEEL, G. B. PRICE. 

